7178 tmpfs incorrectly calculates amount of free space

*** 19,28 ****
--- 19,29 ----
   * CDDL HEADER END
   */
  /*
   * Copyright (c) 1990, 2010, Oracle and/or its affiliates. All rights reserved.
   * Copyright (c) 2011, Joyent, Inc. All rights reserved.
+  * Copyright 2016 RackTop Systems.
   */
  
  #include <sys/types.h>
  #include <sys/param.h>
  #include <sys/sysmacros.h>
*** 587,597 ****
  
          /*
           * If tm_anonmax for this mount is less than the available swap space
           * (minus the amount tmpfs can't use), use that instead
           */
!         if (blocks > tmpfs_minfree)
                  sbp->f_bfree = MIN(blocks - tmpfs_minfree,
                      tm->tm_anonmax - tm->tm_anonmem);
          else
                  sbp->f_bfree = 0;
  
--- 588,598 ----
  
          /*
           * If tm_anonmax for this mount is less than the available swap space
           * (minus the amount tmpfs can't use), use that instead
           */
!         if (blocks > tmpfs_minfree && tm->tm_anonmax > tm->tm_anonmem)
                  sbp->f_bfree = MIN(blocks - tmpfs_minfree,
                      tm->tm_anonmax - tm->tm_anonmem);
          else
                  sbp->f_bfree = 0;